Inventor · disambiguated record
Yoshiyasu Kamiyama
Also filed as: KAMIYAMA YOSHIYASU
6 granted patents·117 citations·filing 1980–1990
85Inventor score
Technology areasB01D
Top patents by PatentIndex Score
6 records- 0182US4619767AComposite semipermeable membraneNITTO ELECTRIC IND CO·Filed 1981·Granted Oct 28, 1986·38 cites·10 claims
- 0259US4640773AMembrane separation apparatusNITTO ELECTRIC IND CO·Filed 1985·Granted Feb 3, 1987·24 cites·4 claims
- 0353US4612118AComposite semipermeable membrane of polyamine and trianzineNITTO ELECTRIC IND CO·Filed 1984·Granted Sep 16, 1986·15 cites·9 claims
- 0453US4385084AProcess for preparing a selective permeable membraneNITTO ELECTRIC IND CO·Filed 1980·Granted May 24, 1983·15 cites·28 claims
- 0548US5104544ARefining of a rare earth including a process for separation by a reverse osmosis membraneNITTO DENKO CORP·Filed 1990·Granted Apr 14, 1992·14 cites·7 claims
- 0647US4737325AComposite semipermeable membrane and process for preparation thereofNITTO ELECTRIC IND CO·Filed 1986·Granted Apr 12, 1988·11 cites·18 claims
Join the waitlist — get patent alerts
Get an alert when Yoshiyasu Kamiyama files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →